INFLUENCE OF STORAGE ON THE QUALITY OF NATURAL ANTIOXIDANTS IN FRUIT BEVERAGES

The study material consisted of the following fruit beverages: (1) apple, (2) apple-orange-peach, (3) apple-cherry, and (4) apple-chokeberry, produced by Fructo-Maj in Milejów near Lublin. Contents of phenolic acids, anthocyanins, and ability to neutralize free synthetic ABTS and DPPH radicals were determined just after producing and 3 months of storage. Beverage storage had a negative influence on polyphenols content. A decrease of polyphenolic activities resulting from the storage process was reported. The highest antioxidant properties were recorded for apple-chokeberry beverage, the lowest – for apple-orange-peach juice.

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eISSN:	2083-6007
ISSN:	1230-0322

W latach 2022-2024 kwartalnik naukowy Polish Journal of Food and Nutrition Sciences realizuje projekt nr RCN/SP/0520/2021/1 finansowany ze środków budżetu państwa – Ministerstwo Edukacji i Nauki w ramach programu „Rozwój czasopism naukowych”. Dofinansowanie wynosi 120 000 zł. W ramach projektu podejmowane są działania zmierzające do podniesienia poziomu praktyk wydawniczych i edytorskich, zwiększenia wpływu czasopism na rozwój nauki oraz utrzymania się czasopism w międzynarodowym obiegu naukowym.

In the years 2022-2024, the scientific quarterly Polish Journal of Food and Nutrition Sciences accomplishes a project no. RCN/SP/0520/2021/1 financed from the state budged – Ministry of Education and Science Republic of Poland in the framework of a program “Development of scientific journals”. The financing amounts to 120,000 PLN. The program aims at improving the level of publishing and editing practices, increasing the impact of scientific journals on science development, and extending the international range of scientific journals.